Results 41 to 50 of about 102,186 (212)

Um Procedimento para a otimização de válvulas do tipo palheta considerando aspectos de eficiência e vida em fadiga [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.Válvulas do tipo palheta são comumente utilizadas em compressores alternativos devido a sua simplicidade e baixo custo ...
Silva, Ernane
core  

Investigation of combustion and performance characteristics of CAI combustion engine with positive and negative valve overlap [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In the first part of studies, Controlled Auto-Ignition (CAI) combustion was investigated in a Ricardo E6 single cylinder, four stroke gasoline engine.
Yang, Changho
core  

The Influence of Mitral Valve Asymmetry for an Improved Choice of Valve Repair or Replacement

open access: yesFluids, 2022
The study of valve asymmetry represents an important avenue for modern cardiac surgery. The correct choice of leaflet reconstruction may indicate a new path in the quality and long-term survival of patients.
Dario Collia, Gianni Pedrizzetti
doaj   +1 more source

Dynamic impact stress analysis of a bileaflet mechanical heart valve [PDF]

open access: yes, 2010
[[abstract]]Background and aims of the study: Mechanical heart valves (MHV) are widely used to replace dysfunctional and failed heart valves. The bileaflet MHV is very popular due to its superior hemodynamics. At present, bileaflet MHVs account for about
Yuan, Q;Xu, LJ;Ngoi, BKA;Yeo, TJH;Hwang, NHC
core  

Otimização do sistema de sucção de um compressor alternativo de refrigeração doméstica [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014O projeto adequado do sistema de sucção é de fundamental importância no desempenho de compressores ...
Ferreira, Willian Martins
core  

Study of the nozzle check valve with respect to its operating characteristics

open access: yesEPJ Web of Conferences, 2018
Several modifications were developed when designing the nozzle valve. This study offers an assessment of the properties of new modifications of the nozzle valve design.
Klas Roman   +2 more
doaj   +1 more source

长寿可靠型连杆式切断蝶阀设计研究开发

open access: yesJixie chuandong, 2012
A long-life & reliable connecting rod type shut-off butterfly valve is a kind of high temperature gas shut-off valve with long life, reliable,safe and efficient features.It is applied wider and gradually replaces the heavy gate valve as shut-off valve in
冯力
doaj  

Aprimoramento e caracterização do comportamento operacional de uma válvula rotativa inercial [PDF]

open access: yes, 2012
Tese (Doutorado)- Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2010Nos últimos anos, as inovações em sistemas de controle hidráulicos têm recaído, principalmente, em ...
Souza, Alisson Dalsasso Corrêa de
core  

压差-电气-面积补偿型高压大流量电液比例调速阀的研制

open access: yesJixie chuandong, 2004
According to the differential pressure-electric-area compensating principle, the author makes use of the construction of forerunner valve plus main valve to design high-precision heavy-flow electric-hydraulic proportional speed control valve, which will ...
胡均平   +3 more
doaj  

Investigation on the Dynamic Characteristics of a New High-Pressure Water Hydraulic Flow Control Valve

open access: yesMachines
Water has the disadvantages of low viscosity, poor lubrication, and easy leakage, which leads to many problems in water hydraulic flow control valves, such as low working pressure and large flow fluctuations.
Wenchao Liu   +5 more
doaj   +1 more source

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